Variations on parsing.js

/**
 * Resolve variables in string using a variable lookup
 *
 * @param {string} str The string to resolve variables in.
 * @param {object} variables The variables to resolve.
 * @returns {string} The resolved string.
 */
 function resolveVariablesInString(str, variables) {
	 if (typeof str === 'string') {
		 var matches = str.match(/\${.*?}|%{.*?}|✨{.*?}/g);			
		 if (matches) {
			 matches.forEach(function(match) {
				 var variableKey = match.replace(/\$\{|\%\{|\✨\{|\}|\(\)/g, '');
				 var variableValue = resolveObjectByKey(variables, variableKey);
				 str = str.replace(match, variableValue);
			 });
		 }
	 }
	 return str;
 }
 
 
 // Alternate version with indexOf
 
function resolveVariablesInString(str, variables) {
	if (typeof str === 'string') {
		do {
			var startString = '${';
			var startIndex = str.indexOf(startString);
			if (startIndex == -1) {
				startString = '✨{'; 
				startIndex = str.indexOf(startString);
			}
			var endIndex = str.indexOf('}', startIndex);
			if (startIndex > -1 && endIndex > -1) {
				var variableKey = str.substring(startIndex + 2, endIndex);
				var variableValue = resolveObjectByKey(variables, variableKey);
				str = str.replace(startString + variableKey + '}', variableValue);
			}
		} while (startIndex > -1);
	}
	return str;
}